Malicious PDF — malware analysis report

Static analysis result for SHA-256 f302c62912242795…

MALICIOUS

PDF

71.3 KB Created: 2021-03-25 01:57:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 5bcc4e7f100077d93fd3d10a6de71fcf SHA-1: f8022f9b7a7d64849be29a8afc205d9d7216975b SHA-256: f302c629122427953caf8ddcb53e253596d4ab0ae3a2b24817189fb66153e559
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document that contains a URL designed to trick users into downloading potentially malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, and the embedded URL points to a suspicious domain. No scripts were extracted, but the PDF structure itself facilitated the phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://nipisod.ru/award?keyword=barefoot+investor+pdf+audible PDF link annotation
    • http://lamisorosasam.mywebcommunity.org/xedejetele.pdfIn PDF document text
    • http://fortysgjdk.fun/kakipolwbec5.pdfIn PDF document text
    • http://winoraama.space/damepiy7lp8.pdfIn PDF document text
    • http://ponaxamewimenul.sportsontheweb.net/how_to_reduce_into_smaller_size.pdfIn PDF document text
    • http://nafepuzemobir.sportsontheweb.net/sukilogemi.pdfIn PDF document text
    • https://lirefabagobaxi.weebly.com/uploads/1/3/4/0/134012393/wugirugumujob_zegidopojisavem_guxefo_fepoxegamani.pdfIn PDF document text
    • http://jawixogu.mygamesonline.org/spiritual_authority_by_watchman_nee.pdfIn PDF document text
    • https://judenebubiz.weebly.com/uploads/1/3/4/6/134656374/xusudafadesikot.pdfIn PDF document text
    • http://xenogejewaruvi.22web.org/ruxakavarofa.pdfIn PDF document text
    • http://kemutedetabu.scienceontheweb.net/centrismo_in_italia.pdfIn PDF document text
    • http://virnet77.ru/when_lights_are_low_benny_carterrzg3u.pdfIn PDF document text
    • http://winoraama.fun/icom_ic-718_hf_reviewzxb2j.pdfIn PDF document text
    • https://lewuseloti.weebly.com/uploads/1/3/1/4/131437615/dezur.pdfIn PDF document text
    • http://barberking.best/219834051876gbfe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://0778d94d-b67d-49c3-8f6f-43f52d6edec9.filesusr.com/ugd/b85eb0_85fab654be17492483f4d16bb182aff5.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xifabilejilab/dmvpn_cisco_configuration_guide.pdfIn PDF document text
    • http://vivimaga.epizy.com/fungi_online_lab_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/dotivaf/34875044331.pdfIn PDF document text
    • https://s3.amazonaws.com/tojazudibumogab/54442472057.pdfIn PDF document text
    • http://rarezutawuwelam.epizy.com/dodozakaxogimuxuzet.pdfIn PDF document text
    • https://s3.amazonaws.com/nisoxow/nkjv_bible_free_offline.pdfIn PDF document text
    • https://528f6e5c-6927-42ef-b7a5-a8f9c349750c.filesusr.com/ugd/07b979_ae36acbe3b0346e3ac52e8851dd92838.pdf?index=trueIn PDF document text
    • https://c6926203-1eb9-401e-9afa-11f61f201807.filesusr.com/ugd/685707_fe8b8b6524a746be897ff74006a5303c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/buxoparadazegu/4524489065.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d87d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD87D 5284 bytes
SHA-256: b1eb2704d846983412f10f35387ebf4ac072194246e4689870952f268144791e
font_01_sfnt_off0000ea87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA87 10496 bytes
SHA-256: a45bfeacdb3e5774aa5f7cf2cd834e4b60da441bfdab1d181a98ff1542e73859

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